I refuse to believe OP isn't on a wind up misson.
Firstly, I earn no where near £13000 a month, but this is still not what I would consider wealthy. Very well off, even rich, yes. Wealthy, no.
Secondly, I don't know how any times you can deny this OP but the excess money built up in your current account IS savings. Just because you don't transfer it to a savings account, dosnt make it not savings.
So £13000 lands in your current account each month. You, for example, I obviously have no idea on actual numbers, spend around £9000 on an average month on mortgage, bills, food, eating out, clothes, petrol etc etc.
So on an average month, £4000 of unspent salary stays in your account. So after 4 months you have built up (saved!!!!!) £16000.
You then decide to book a holiday and pay it from your current account.
This is paying it from savings!