Purple Line Avis 

Purchased the Single Axle Kojak Caravan Jack
On first use the jack seized in the fully extended position while it had jacked up the caravan.
I had to use the car scissor jack to raise the caravan higher so I could get the jack out and away from the caravan.
Returned to retailer for refund. Not ready yet to trust another Kojak.

Great Idea but not without design faults/oversights.I would have given 5 stars but as a Chartered Engineer I can't totally justify it. The best lock is the Alko wheel-Chassis lock for secure fixing. I bought the Nemesis Ultra to actually add a 2nd level of security to the caravan instead of just buying a locking wheel nut..I did a fair amount of research before purchasing and viewed the videos on how to use the lock..after purchasing in Nov 2018 from a large caravan dealer I fitted it to the van before going back into storage. Oh man the process of adding the shim washers to get the correct level of distance to the alloy wheel was a tortuous process and even after about 10 attempts it still didn't feel right, the poor old foam sleeve on the long bar got ripped to shreds on the caravan chassis, I have a popular Swift Challenger SE Lux 480 so a normal popular caravan but the shimming process was a ball ache, I also torqued the (small) wheel nut to the correct level. After I satisfied myself of the correct fitting off to the storage facility. On setting the locks (Alko 1st) the Nemesis felt loose, so all that initial faffing seemed to contradict itself, the lock/key worked so I left it as is..Two areas I would like to see more design improvements 1) Foam sleeving is a waste of time, needs to be more robust e.g like hose pipe and I can see why there aren't any videos on the shimming process as it would put most people off 2) The plastic weather cap is too short as it doesn't cover the 2nd allen key hole closest to the face and this will allow water ingress and if you don't grease it will become difficult to remove at a later date if you need to alter the fitting for another van...so Yes a great lock but with some extra care and attention would be great..BTW I sent images and comments in Nov 2018 to the company (Purpleline) and have heard not a sausage....would I recommend..yes but not without faults.

We bought the Hitch lock and the wheel lock came with the van. Easy to fit. Sturdy. Good visual deterrent being orange. Would buy again and will buy the corner steady lock to complete the set.😁

I purchased a Saracen hitch lock for our van. I have found it simple to fit ,and it is 100% successful as our has not been stolen or interfered with very happy peter & trish

Easy to fit and as secure as I will ever need. A brilliant affordable product

Really great product and takes seconds too fit unlike other products on the market.

Bought a KOJACK carvan Jack. Used it two times on each wheels on my carvan and now it leak Oil from the top of the jack. Write to Purpleline and ask how to fix this. They never answered my inquiry.
But after that they reacted immediately, and send new gasket for the jack.

Nemesis wheel lock.
I fitted a nemesis caravan wheel lock to my caravan.what a great piece of kit so easy to use.once the reciever is fitted to replace a wheel bolt
Only takes seconds to fit.
I found the only fiddly bit was locating key in lock.good value when compared to other locks.Thanks purpleline.sandy knox.

Quality bit of kit our motor mover! Wouldn't hesitate to recommend.

I registered my nemesis wheel lock and it was easy and straight forward

Really easy to fit , excellent security, gives a real sense of security. And piece of mind .Good value for money would recommend to anyone. Excellent.

Brilliant product....so easy to use and can fit it in approx 30 seconds with one hand....

Just spent almost £200 on a Nemisis Ultra and a Gull Wing Hitch Lock.
both products bought this week from different dealers had registration paperwork saying new keys could be purchased at £10 including p&P On ringing was told price had increased to £19.95 each! virtually a 100% increase. Dont expect after sales service, hope the product performs. would never purchase from this company again

My handset stopped working, so I retuned it for repair, though it was well out of guarantee.
The service I received was nothing short of superb. A new handset arrived within 24 hours, free of charge. I would unreservdly reccomend this firm.

My husband purchased this item on 11/08/16, tried to fit to caravan wheel and found there was a lot of play and didn't fit tight enough to wheel, a fellow caravaner who had the same product said he had the same trouble and we needed more spacer rings. Rang purpleline on 31 August, spoke to Yemi, who advised had no spaces in stock, ring next week, which he did and spoke to Leanne, who did send what spacer rings that were available ( 3 or 4) which wasn't enough to solve the problem. Rang again on 28 September and spoke to Vanessa, who advised my husband he wasn't fitting it right and transferred him to Mark (technical adviser) very helpful and agreed we needed more spacer rings. Still received nothing so rang again on 10 October and was advised by Joanne they were posted 2nd class on 6 October. Still not received by 17 October, rang again and spoke to Joanne, who advised couldn't make a claim for the spacers we hadn't received until 21 days after being posted. To date still received nothing. Customer service diabolical. Item not fit for the purpose it was sold, because without these spacers it can be tampered with. Been back to the caravan company where it was purchased and they have one on display and assured my husband he was fitting it correctly and YES he needs extra spacer rings, which they do not carry stock off and need to get in touch with purpleline. It has cost us more in time and telephone calls, than the spacer rings cost. Buy at your peril, this item costs over a £100

I Purchased a Kojack Lite (Caravan Jack) in March 2013 and given it's a Bottle Jack I have rarely used it, however when I checked it recently the seal appears to have blown so oil was bubbling out of it .. given it's age I contacted Purple Line to request if it could be repaired or if I could purchase the seal and do it myself, however after several weeks and various e-mails back and forth I have got nowhere, each time being told their technical team will contact me which never happened .. I have now resigned myself to the fact I will need to scrap it and write off the £80 cost to experience ...
UPDATE:
After posting a message on their Facebook Page they posted me a packet of washers and seals but with no instructions, so whilst it's a nice gesture it does not resolve my issue ..