How to accept bitcoins from a buyer?

Question

Payment systems

The task is to accept bitcoins from a person and credit him to the balance. For example, he transfers 0.001 Bitcoin to his wallet, this amount is credited to his balance, and later he can withdraw it (minus the commission, of course). At that moment, while the bitcoins are on his balance, there may be more of them, for example, I can give him another 0.001 bitcoin. As a result, the user's balance is 0.002 bitcoin. If he wants to withdraw them, then he will have to create a transaction with two inputs: the wallet to which he threw the cryptocurrency, my wallet.
Is there any other way to accept funds from him without creating a transaction with two inputs? Is it possible to accept bitcoin from all users to one wallet, so that later it would be easier to withdraw? The problem is that when accepting funds to one wallet, it will be difficult to verify transactions and it will not be clear whether this user really made the transfer.

Answer 1

You create a separate wallet for each buyer and give out a number for replenishment, so you will see all the replenishment by buyers of their balances.
You transfer money from wallets to yourself, to your wallet.
The balance of the buyer in your personal account is displayed virtual, the number how much he entered + the virtual coins you accrued.
If the buyer wants to spend his balance, you ask the buyer for the data for the transaction (where and how much) and from your wallet you complete the transaction, that is, you pay with your own money for it.
You keep your pyramid in working condition until you accumulate enough coins.
When you have enough, you withdraw to fiat and hide in the sunset.
You can also make a couple of mailings about technical difficulties or a hacker attack in order to fool the heads of suckers for another week and run away.
This is how all crypto businesses work.