I've had this service on two high-value vehicles (...

I've had this service on two high-value vehicles (as the insurance companies insist we have this service) and both have always been the same. Every year Tracker.co.uk just take the renewal money from my registered card without a remittance advice or invoice being sent. I always have have to chase them for it. No other business would be allowed to do this and every year I have to fight to get payment notifications. Shocking really. I even think this may be counter to HMRC rules for a VAT rated product. I should say that their finance staff are always pleasant and helpful and I do get the info I need from them.
(edited to correct formatting & typos)