It's unfortunate but not uncommon these days to get frequent spam calls. Since you're getting so many and some seem like robocalls, it's likely your number ended up on some kind of list that spammers are autodialing. An effective solution could be to set up call blocking on your landline. Many landline call blocking devices or services allow you to block specific numbers of known spammers, as well as detect and block likely spam calls from unknown numbers using algorithms and crowd-sourced data to identify common spammer patterns. block spam calls on landline the spam could help reduce these annoying calls and give you more peace. Might be worth looking into if the problem persists.