Ecco Hybrid Golf Shoes

I've been using Footjoy golf shoes for about 10 years, which I found comfy and sturdy. Looking for even more comfortable shoes, I recently bought a pair of hybrid Ecco golf shoes (E-DTS), even though the price seemed rather high (I paid about 150-160 €). They seemed to fit quite well at first and the spikeless sole provided solid ground contact on dry grass.

After two trial runs at the range and a full 18-hole round, however, I got severe blisters at the back of my heels. Examining closely the shoe with the staff of the pro-shop, we noticed that the back of the shoe (the curve at the heel tab) was excessively narrow, which explained the steady pressure on my heel. The pro-shop took up the issue with the local distributor, arguing that the shoe was defective, but there was no response. I also sent a query to Ecco UK, with no answer whatsoever.

I'm now trying to stretch the back of my shoes with an expandable form keeper, but it remains unclear whether this will work.

PS: I now reside in southern Spain, but I used to live for many years in the U.S. What a contrast!! When a product is defective, US shops will almost never hesitate to exchange it or to provide a full refund (many shops even do that with no question asked). In case of difficulty, the mere threat to call in the Better Business Bureau or to sue in the small claim courts is enough to resolve the problem. Why is it that Europeans do not care about consumer protection? The EU administration includes "Consumer Centres" that purport to provide impartial advice and assistance to consumers in cross-border European disputes. In my experience, however, this is absolutely useless. And the worst case in point has to do with automobile warranty: in the U.S. car owners get 5/50 (5 years or 50,000 miles, whichever comes first) or even 6/60, whereas Europeans only get 2 years!