Can't connect to iTunes store
Have been receiving "iTunes Store cannot process purchases at this time, please try again later" messages for the past few weeks when trying to update apps. I get these messages often and usually just wait it out until it resolves itself but it hasn't worked this time and now I can't access a few apps because they need to be updated. I've tried all the solutions I've found on different websites including Apple's.
- I've tried logging out but now I can't log back in. I get "iTunes Store cannot..." messages even when just trying to sign back in. (and "Could Not Sign In" messages). I've changed my password as well.
- My system's time and date is correct (tried signing in with automatic time/ without it)
- System is updated to most recent software (iOS 12.3.1)
- Tried restarting phone.
- Resetted network settings.
- Tried logging in/ updating on other wifi networks and got the same results.
- There's nothing wrong on Apple's side (https://www.apple.com/support/systemstatus/)
So I figure that the issue is most likely my phone but I'm not sure where to go from here. I've already contacted Apple and am now waiting for a response. Should I also get my phone checked at an Apple Store? Is there another possible solution that I've missed?
There's nothing else wrong with my phone (can still connect to wifi, bluetooth is working, phone still rings, and so on), although I have dropped my phone a couple of times.
EDIT: I've been able to download one app during this period but subsequent downloads produce the same results up until I logged out. I'm not trying to/ have been trying to purchase anything either.
iPhone 6s Plus, iOS 12