Ftech clones are clones, they take up to 4 weeks to arrive. Clones from other sources which are also, as the name implies, clones, arrive quicker, have better 'customer service' and the vendors can be contacted quickly and easier, if necessary, but cost a few quid more.
Personally I find it difficult, via this forum, to answer ftech questions with the honesty that I would like as that although I know that there are not a multitude of chinese workshops making a multitude of clones, of the same item, with a multitude of quality differences and using a multitude of 'cloned' packaging (that are exactly the same) I believe that everyone, no matter where they are,globally, located, deserves to have a crack at earning a bob or two.
Fasttech don't manufacture anything, they purely source and resell, the same as any retailer, but they are competitively cheap,if you don't mind waiting. Despite the fact that ftech items can be returned easily, the time to resolve would be another four weeks, and this together with the 'credit system' (meaning you have to, again, request for credit to be refunded to your paypal = more waiting), means that they have to be cheap to me, to be justified as a supplier, and also justifies why similar items, from another vendor, may cost a bit more.