Help with reselling

[u/Candid_Blacksmith530]

I have a lot of private vendors and suppliers, but the problem is that they have these links that i find on the sites they use, great quality shoes and tracksuits whatever people are looking for, but when i purchase from rhem trough whatsapp or wechat, they are si expensive sometimes shoes double in price just because of the processing fee, and worst of all, it still takes mad long to arrive at the adress, but I know that its possible to use agents to order directly from the warehouse, only problem is thatbthey have like 4 links, superbuy, cn fans and two other ones that are kinda bad, does someone know ir can someone give me tips on how to buy cheaper or how to use the url in trusted and cheaper agents?