TEMU not honoring their return-goods policy

The quality of their clothes is shocking. Thin & flimsy material. I requested a return of goods on 8 April 2025. They indicated that Buffalo Couriers will collect the parcel within 14 days. Today is already 2 days short of 1 month. When I tried to e-mail them, I received a general e-mail saying that I should make use of their app to query my returns. Every time I put the shipping tracking number into their system, the chatbot says they will arrange for collection, to be patient. How long does anyone have to be patient? It is clear they do not want to collect the goods or refund me for their sub-standard goods.