Useless Bank

I sent a friend of cash send via my tyme bank accounting using his number as he doesn't have the bank account but it turned out that his number was used by someone else who has a tyme bank account and the money went into his account. I have been calling tyme bank to sort this issue out to no Avail!! Can I get assistance to get my money back. This option of the money automatically going through someone's account whilst I choose the cash send option is very useless, look into it. #****ed off