Hi Seminare and welcome to the forum.
I think this post may answer some of your question.
In regards to wholesale prices on products in general terms, it's always an idea to contact a supplier when wanting to order in volume. Wholesale prices are based on volume ordered, so a wholesaler isn't able to provide you with a price until they know how many units you want to purchase.
You might want to send hotbrandsdepo a PM, I know they deal in mobile phones and may be able to assist
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