Perspective?
I dread to think what the original poster must be thinking about the way this thread has developed - perhaps its best viewed that e-bike owners are an enthusiastic bunch who get passionate about their bikes?
A couple of observations -
1.Its not a mass market product - e bikes in the UK are not a mass market and therefore do not support a massive retail network for all brands (Wisper are to be congratulated on their coverage) - there are parallels with other specialist supplies, eg my other main passion - kayaking there are some brands with coverage in many parts of the UK, others are imported by just a single company and distributed from a sole location. This does not mean the suppliers have 1960s approaches to customer service and support, in fact my experiences with some companies who are sole suppliers of products is that they are very aware that the brand reputation is down to them and they work hard to protect it.
2. The UK is not really that big - London, Milton Keynes, Kidderminster, Edinburgh, Cardif, Norwich, Carlisle etc - I can get to any of them in a day, I can and do order items from all these locations and recieve them within 48 hours (so long as its not snowing!) and I can and do return items back to these locations. So long as the supplier I use has a presence in the UK staffed by real people I can talk to either on the phone or in person I would be happy. E bikes, kayaks, Canadian Canoes, roof boxes can be bulky to courier about, but its all possible with sense and care.
My conclusions are therefore
You are buying something unusual - be prepared to put some effort into investigating, researching and trying things out to get what is best for your individual requirements - cannot all be done via the keyboard or at the local shop round the corner.
Dont worry too much about which corner of the UK you get it from - buy a reputable bike from a reputable supplier and it will not fail every five minutes if it does develop a problem a decent supplier will support you.
My personal experience - 10 months, 2800 miles, 1 problem which I am prepared to concede I contributed to via my "after-market mods" but which was dealt with speedily and effectively under warranty. Nothing has broken, shaken loose, fallen off, worn out too fast or failed to operate as expected.
Still on original tyres, brake pads, chain, chain ring, cables, pedals, lights etc
This is better then some 2010 cars - I have friends whose new cars have spent more time back at the dealer than on the road in the first few weeks!
Good luck
Bob_about