Envoy's Bitcoin receive address

Envoy’s Bitcoin receive adress is changing every time I use it.

If I want to DCA on a weekly basis, can I use the same Bitcoin address every week or do I have to use the new Envoy Bitcoin address ?

If you’re buying in small quantities, just wait until you build up over a month before moving to cold storage. It’ll avoid having a large amount of smaller UtXOs.

You can use your addresses however you see fit, they do not expire. However, reusing addresses can be detrimental to your on-chain privacy. Learn more here.