FFF
Even though the invoice for renewals says paybale via bank, I've always done mine by credit card, either over the phone or by e-mail (Ok, the latter's not 100% secure, but I've been ok so far). I think saying that "it's been going on for a while" when referring to rustle's link is a bit unfair - just have a look at the dates of the postings compared to now.
Never had any problems, change of address has always gone through ok if they get warning and an effective date. Quite happy with the product (I've got a Jepp T-UK 04 and the Bottlang 'D' Euro manuals) and don't see myself changing. Even order my VFR charts and other bits from them direct as a registered customer. Always been very prompt.