Poor customer service

I selected and paid for a child’s bicycle on June 5. I received a confirmation number and after a week I tried to contact them to confirm delivery date. They only provide an email address! Only on Friday did I get a response saying they were unable to to manufacture. They offered me 2 replacement bikes that do not look anything like my order! I want a full refund immediately so I can go and purchase a push bike ahead of my grand daughter’s birthday! I have asked them repeatedly to call me or provide a contact number so I can get this resolved with no more stress!!!!