I have used ELectrum for the first time and it seemes I have made a silly error. I wanted to send BTC from Coinbase, so I have opened Electrum, went to Adresses and copied one of them. On coinbase, I pasted the adress and sent the coins. The coins were taken off, but after two days, there is still no deposit on the adress. Now I can see there is a section Recieve, so I know how to do it next time  The question is can I still have BTC which I have sent as I described?  K