Collection name Twice in Collection URLs

Hello

I have a furniture related shopify website. It shows collection name twice in Collection URLs.

Example1: .com/collection/mattress/

Example2: .com/collection/mattress/mattress
Example3: .com/collection/mattress/appliances

Example1 and 2 are 1 collection name “mattress” but with 2 URLs and having the same products in each URL. It is creating duplicacy.

**Example3: .**com/collection/mattress/appliances. It also open but without products with same **.**com/collection/mattress/appliances canonical. It is creating duplicacy as well.

Please let me know how and from where the example2 and 3 are appearing. I need only example1. How to remove the Example2 and 3.

Please help

Hi @Amarwebmaster

Please share with me your store URL so we can take a closer look

Best,

Daisy