
If you have tried to be clever and spent/moved it already and are unable to repay it in one go, you'd better talk to Santander immediately and ask whether they might agree to a repayment plan that costs less than the overdraft fees. They don't have to agree to this, but if you ask nicely, they might be able to do something. If you don't ask, you'll be left with an overdraft. Be aware that overdrafts can be recalled in full at any time - something you have also agreed to at account application time.