Is 82310 gas guaranteed to execute the contract? I am new to ETH but I've been reading some horror stories that many miners reject any gas at all.
That amount worked for me on my purchase. If not, the transaction will be cancelled anyway, as it was when I first sent with 21000.
It also worked for me, before i've try many times to complete my transaction in MEW by increasing gas from 21k, 30k, 50k up to 80k that make my ETH in MEW decrease. I do not know why they not cancel the transaction if the gas did not reached.