A change of address led to our Wise accounts being shut down

At some point customer service died. Businesses of seem to no longer be interested in dealing with customers. Good customers come in all shapes and sizes, and often don't exactly fit a cookie cutter. It's frustrating to see businesses just cut and run the moment something becomes a problem that needs more than a series of pre-scripted responses to be resolved.

There was a time when the general consensus was that treating customers well would result in greater retention, which, in turn, would ultimately prove to be net positive profit-wise over time.

It seems like that changed somewhere around the turn of the century, whereby businesses started to decide that it was better to cut down on customer service, and in some cases, go so far as to ban customers. The first cases of this I recall reading about had to do with Best Buy, and specifically their policy of banning people from their stores who made a lot of returns.

I'm not really sure how it ultimately maths out - i.e., whether it's long-term optimal to drop troublesome customers or merely short-term optimal, and this was primarily taken from the perspective of retail.

As such, I'm sure the math changes a little for subscription services. However, I also recall my prior employer's support activity followed a power law distribution across its clients, so it wouldn't surprise me if a policy to drop particularly noisy clients is a net savings there as well.

For brick and mortar retail that isn't fast fashion or supermarkets, dropping troublesome customers is generally extremely sensible.

Profit on most goods is low - single digit % typically - and a single return can eliminate the profit margins on a dozen sales. Sometimes cost can be reclaimed from goods providers - i.e. genuinely defective or manufacturer refurbishment programs - and sometimes they can resell the item as new. But if the item has been used, broken by the customer, etc. the loss is significant. It turns out that some people are more honest than others, and some people are directly trying to scam companies.

When one 'dodgy' customer can eliminate the value of 10 'real' sales with every return the maths say to ban people quickly.

A little anecdote - I have a distant relative who, circa 2005, would buy a vacuum cleaner use it, and then return it. He rotated stores (hardware stores, supermarkets, electronic stores) until he gradually got banned from them all. Once that happened he moved house. Not only had he almost certainly spent more in time and fuel than a reasonable vacuum would have cost him (which I will note he could afford); but the cost and waste he has incurred on both individual companies and society at large through that and similar schemes is staggering. I don't know if he's still at it - or alive - but the people he was surrounding himself with all saw such behaviour as reasonable.