SeekUp Vendor at App Store analyse

We are a company that has designed two special programs for customers (buyers) and the second for companies and institutions (sellers).
The idea of ​​the program to link the buyer and seller through these programs through the following:
1- The customer can request what he needs in the dedicated section. Therefore, the program will send this request to the sellers program according to the sellers classification (eg mobile phone request customer), select the mobile phone section and send the request will be sent automatically to the sellers who sell the mobile phones.
Therefore, the seller who has the request can reply to the customer.
2. In case of agreement between the seller and the buyer, the buyer can follow the application and its condition.
3 -Chat support with the buyer
4. The buyer can evaluate the seller.