Are two transactions permissible in e-commerce: the first by requesting the addition of the store's logo and special packaging for a product that the supplier sends after each order, and the second by agreement with the supplier to sell his product at an increased price, while paying its cost to the customer from personal funds to avoid waiting for the money to be reserved? And how can they be corrected?

The first scenario (Parallel Salam Sale): It is permissible to sell a described commodity that is still a liability (not yet in possession) before receiving it, and to authorize the seller to deliver it directly to the second buyer, provided that the conditions of a Salam sale are met in both contracts.

The second scenario (The questioner acting as an agent and marketer): It is permissible for the questioner to act as an agent for the supplier and market on their behalf in exchange for a known commission. However, there are some Sharia issues: 1. It is not valid for the questioner to act as an agent for the supplier in receiving the payment as long as the principal (supplier) is not present at the contracting session. The contract might become void if the principal leaves before the agent takes possession of the payment. Similarly, it is not permissible for the questioner to pay the price to the supplier from their personal money, as this combines a loan with a sale, which is prohibited in Sharia. 2. The price remaining held at the payment gateway for several days negates the condition of receiving the full price at the contracting session.