Long story short is that at around 1am I remembered I needed to pay a catalogue bill, so I logged in to do so. I was paying more than the minimum amount so I clicked "other" to enter the figure.
I thought I had put £35.00 but in fact I later realised it was £350 I had entered.
I have been looking online for hours trying to find what course of action may be open to me, I acknowledge it was my mistake but it was an accident and I really did not intend to pay such a large amount.
Can anyone please offer some advice? AIBU to ask for it back, can I even ask for it to be returned?