Can you delay the drawdown? Is it a new apartment? Has it been snagged etc.
When are you likely to have the rest of the money?
As a short term (and partial) solution, you may be able to use an overdraft, but I'm not sure if this would be acceptable.
It is almost certain that a credit card loan would show up on a credit report, and would be an extremely expensive method of finance, and not one that I would advise.
Can your boyfriend help? Any reason you don't want to approach family, with the understanding that the loan could be repaid within, say, 3 months?