I feel your pain.

The eBay app is a shocker and, whilst more and more customers are shopping online with their phones and tablets, I think a lot of sellers cringe over the monumental stuff ups that occur when humans with stubby fingers (lol) use their gadgets to buy:

- app glitches such as those you have mentioned

- leaving grey or red dots accidentally with their positive comment

- leaving low star ratings when trying to click the best possible star ratings

- buying multiples of the same item when their intention was only to buy one

The list goes on, I'm sure...   eBay won't take responsibility, sadly