Hiya
I used to use Cox Plastics but they started charging way too much for freight (in their own vehicles too!) and they wanted to slap on a flat “extra” for orders for less than a full 50M roll.  I don’t think they are interested in the smaller business.
So I went to DoroTape a couple of years back. as my main supplier.  Great service and the prices compared well with what I had been paying at Cox’s.  
I have also bought the odd bits from Hexis, KPMF and Victory and have had price details etc. from Europoint.  That was a year ago, and I am still with Doro!!
Cheers
Alan