I sent an amount to the bank account and received 30$ less

aenego

Hi there, pretty much the title says it all, i sent about 250$ to my bank account and i received on it 30$ less. I dont know what happened but my bank said that there were involved other banks in the transaction and thats why i didnt recive the correct ammount. Is this normal. Am i to excpect the same thing when i try to send some money to my bank account. If someone can help me by explaining what happend would be really great. Thank you.