Daylight Robbery - Online purchase.

Unethical business practice. I purchased a box of 9mm blank cartridges online from this store on 29 Nov 2021 and after a week i do not get any correspondence from the store. I paid with my credit card via Paypal and have the receipt for it. On 7 Dec 2021 i emailed the store to query the purchase only to be told that i have to read the "Fine print" and fill in the register (which i did). They stated that only of i purchased the blank gun from their store will they sell the item to me (at their discretion). This is daylight robbery. They are hiding behind their so called "Terms and Conditions - No Refunds or Exchanges". They should never have accepted payment until all requirements are met. I will advise anyone not to deal with such people. They have literally Stolen my money and do not care to communicate with me or honour the sale.