Hellotickets Failed to Deliver NBA Tickets

I purchased tickets from Hello Tickets for the NBA game New York Knicks vs Detroit Pistons at Madison Square Garden on 27 October, paying a total of £377. On 22 August I received an email from Hello Tickets confirming my booking with order number 2288523. Later, I received another email stating that the tickets had been transferred to my email address (tima***[email protected]). Despite these messages, no tickets have appeared in my email inbox or in any ticketing app. The emails do not clearly state which platform or app the tickets are supposed to be delivered through. I have checked my email, including spam/junk folders, and tried to locate the tickets via likely platforms such as Ticketmaster, but I still do not have access to any tickets. Over the last month I have repeatedly contacted Hello Tickets through their website forms and by email. I only receive automated responses that do not solve the issue and I have not received any real support or a clear solution. I request that Hello Tickets immediately ensure that my valid tickets for the New York Knicks vs Detroit Pistons game on 27 October are properly delivered and accessible to me, or urgently provide a clear way to access them via the correct platform. If the tickets cannot be provided in time, I expect a full refund of the £377 I paid.