Newcalltelecom Avis 

They will not answer your emails, though you will get a cut and pasted reply that doesn't answer your question. They will offer to call you back but never will. They are the most complained about communications company to the telecoms ombudsman. Previously called "Primus", they are a nightmare . They don't refund your last bill credit. Always full of nonsense excuses.
KEEP AWAY FROM THEM
NOT RECOMMENDED AT ALL

I signed a contract with Newcall only to receive communications from them in the name of Primussaver. If you read the majority of reviews of Primussaver (including mine), I feel you would not consider even contemplating signing a contract with them. My cancellation notice finally came through via email, I am keeping this safe as I have not as yet received a letter confirming this.

Highlighted by moneysavingexpert.co.uk for being cheap. And that's all they are. And everything that goes with it. Pakistani/Indian call centres with staff who have a lower IQ than the rating given here. They cannot set up direct debits properly, cannot bill properly, cannot speak properly. They will not answer your emails, though you will get a cut and pasted reply that doesn't answer your question. They will offer to call you back but never will. They are the most complained about communications company to the telecoms ombudsman. Previously called "Primus", they are a nightmare that will knock Buzby off his line!