Free return scam

I ordered a pair of shoes and as usual ( only for Europe ?) there is a free return writing in the insertion , and I just have done some free returns for many small items in the past with AliExpress automatically providing a free return label and a chargeback as soon as the tracking is registered. Shoes arrived and didn't like the colour. I asked for a free return label as always and they sent me an email that I have to pay by myself for the return. Chat assistant (human not bot) answered me with precompiled and not related answers. I opened a PayPal dispute...I also considered keeping them because they were feeling great and started to like the colour, but fuck them, there are laws to sell online in Europe and the fact that they say free return and then refuse it, is a scam. I will go till a partial refund or send them back