Yes, there was one in my case!

The diameter is 10.5 cm. There is a branch of Emerio in Switzerland, they have spare parts. I have also needed spare parts and they even delivered them to me free of charge. The best way to enquire is to send an email to info@emerio.ch - more information at https://emerio.eu/verkoop-kantoor-switzerland.

I don't know, the pizza oven was a gift for someone. It's better to ask Galaxus directly.

The product generates heat only from below. Unfortunately, however, the product can no longer be replenished by our supplier and can therefore no longer be ordered.

Ask the customer service directly or check your account to see when the delivery is expected.

uhh yes, ok... now what is the community supposed to do with that? I think you need to make this request to Galaxus directly, not here.