I mean I’ve been using the same reusable bag for a few years now, and I also have some others that I’m not using that much anymore (only when I have a lot to buy at once), so they’ve been used way more than 10 times, and they will keep being used for a very long time
Tbh it doesn’t really reduce the number of unsolicited spam calls that much. On the other hand there is a fixed list of prefixes that can be used for these type of calls that you can directly block: https://www.arcep.fr/actualites/actualites-et-communiques/detail/n/plan-de-numerotation-050922.html.
In France it’s those prefixes “0162, 0163, 0270, 0271, 0377, 0378, 0424, 0425, 0568, 0569, 0948, 0949”