Do what you want. We're only trying to help you make a better choice with your money.
You could deposit £9,800 into an ISA and hold back £200. You'll still have just over £10k at the end of the year.
Then use your £200 to gamble over the year. That way you don't have to wait for the interest, to have money to gamble.
You seem to be coming up with less and less sensible reasons as to why Premium Bonds are a good idea. You don't have to take our advice, but please acknowledge that there is no reason for doing what you suggest, other than 'because I want to'.