Its all good. Realize that it takes less margin to trade spreads than it does to sell these options naked. See my previous post.
You also need to have the brokerage clearance to make those trades.
But to say that you don't have the margin to trade spreads may not be true. Some brokerages require $25k in the account, but that is not always the case. And...the actual margin requirement for the Bull PUT spread is only $444 / contract, so whether you are entering 1 contract or 24 contracts...you still can achieve about 10% return on investment if the contracts expire worthless.