I think I lost my money because of an exchange error...I wanted to transfer usdt from one exchange to another.
I selected the deposit address with the arbitum one network and I realized that it was the same address that I got if I selected the bep20 network (with this network I had already made a deposit).
I understand that each network would have to provide me with a different address, right?
I received an email from the exchange with a successful withdrawal message 90 minutes ago but the money does not appear in the other exchange....
From what I've read the transfer should have taken about 15 minutes.
Anything I can do?
You have not mentioned which exchange you have deposited on, as each exchange has its own procedure. If you check the USDT BEP 20 and Arbitrum One deposit address in Binance, both are the same, but if you go to your Kucoin exchange. And check USDT Arbitrum one and BEP 20 address in deposit address, you will see that both are different.
Not every network address is necessarily different, some networks give the same address. When both your networks have the same address, you can of course deposit to either BEP20 or Arbitrum One, in both cases you will receive USDT.
There is no room for even the slightest mistake in digital currency transfer, you may have made a mistake during the transfer of money due to which your money went to the wrong address.
According to you, the address of both BEP 20 and Arbitram One is same. Your collection method also seems fine. It is better to contact the customer service of that exchange.