So, where SARS states - value of goods , value is determined by price paid? On my orders, the more the "discount" the higher the tax? Anyway, will still use Temu and Wish.
Value is determined by the price paid, yes. You're supposed to pay VAT (with built in inflation i.e. vat on 110% of the value of the goods) and any duties as well. It's based on what you paid, excluding shipping and insurance.