Before we pick on Mediabiz, let's not forget that there are high chances that the OP himself could be a scammer where he sells fake goods (or bricks instead of iphone boxes) and the account opener i.e. the legal seller gets whacked with all the refunds, claims and repurcursions.
There are too many ways this can turn into something undesirable, best to avoid.
Dear legendster
I don't intend to scam and I can do the business alone if we can open seller accounts from Tunisia.
I need a trustable partner and I will deal very honestly with him as he will pay me when the transaction is completed without dispute.
I don't sell fake items and I want to make a durable business
I can sell items with low prices in Tunisia and with higher value abroad such as: second hand clothes, traditional rugs, silver traditional jewelry, hats, olive wood items, handcrafts, and any suggested items by my partner.
I can deal with more than one partner and sell all these items.