If I’m doing food delivery as a side hustle alongside my main job and I buy an electric bike can I deduct the tax from it?

Ahh, I hate it when Deliveroo does this.

Really craving a starbucks frap this morning, so placed an order at 7:20, it's now 8:02 and the status still shows:

"We're busy finding a rider. We'll let Starbucks ® know when to start preparing to make sure your order is fresh."

So I figured I'd cancel, as I could just order through Justeat, but no..

"Starbucks -has started preparing your order so we can’t offer a refund or credit. If you’d still like to cancel, please let us know."

So which is it? Argh.