I purchased $100 worth of BTC on Coinbase yesterday. I will receive my BTC on the 15th, but I'm still not sure whether it will be at the market price of yesterday or the 15th.

With bitcoin crashing and all, and this being my first time purchasing them, I don't want to be screwed.

They say it is possible to cancel the transaction, but I cannot find the cancel page/option. I've clicked the highlighted pending button on the transaction history page, but it just brings me to the transaction details page and there is no cancel option. I've been looking everywhere for it. People are telling me it should be there, but it's not. I've emailed Coinbase, but who knows if they'll actually get back to me.

Am I being scammed? What am I missing?

Thanks.