Game online is pathetic

On 26 April 2020, I purchased a microwave online from Game because I need one urgently. I have sent multiple emails, logged multiple tickets online and I have been trying to call their customer care center, however no one has answered my calls or responded to my emails. I understand that a microwave is not an essential item, however I did not know that at the time of purchase. At this point I just want a refund because there is an online store which can deliver a microwave.