IPad Pro 12.9 4th edition volume button

If your iPad is brand new, as stated, you would be best advised to immediately return to your retailer for exchange.

If purchased directly from Apple, in addition to your statutory rights, you also have a 14-day unconditional return window - in which to return the iPad for refund or exchange.

If purchased from ebay, you should first engage with the seller.

Apple’s 14-day exchange offer only applies to devices purchased directly from Apple. With supporting documentation, Apple will otherwise only consider service under the terms of its limited one-year manufacturers warranty.

That’s good news.

As Apple don’t offer repairs per-se, you will likely be offered an exchange for either a new or refurbished device of the same model and specification.