Hi everyone, I've only been mining and trading since mid December, and I've already had issues with two exchanges where I make deposits that never confirm. When I've sent support tickets, the form has stated that I will usually receive a response within 24 hours. One exchange hasn't responded to three of my support tickets in over 10 days. I would like to hear the opinions other miner/traders regarding the exchanges they find most reliable, as well as which exchages are most responsive to support tickets when problems occur. (because even with the best run exchange, mistakes a bound to happen occasionally)

What say you all?