Bank Help?

I have account with halifax and took a overdraft out which was £300 pounds but it comes out if my account in small amounts i was wondering would i be able to pay all of at omce and how would i do that would i have to go to the bank and say u want to pay it all of or would i be able to do it from my online mobile... show more I have account with halifax and took a overdraft out which was £300 pounds but it comes out if my account in small amounts i was wondering would i be able to pay all of at omce and how would i do that would i have to go to the bank and say u want to pay it all of or would i be able to do it from my online mobile banking app
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