Network Provider Settings Update notification

Hi, I received two spam texts today, I haven’t opened them, just slid and deleted and marked them as junk. However after 20mins, when I clicked on my settings on my iPhone I started getting a popup to update my network provider settings. I clicked not now but it keeps appearing when I click there. It only appears when I click settings-about. However my network provider claims there aren’t any updates from their end and I should just ignore it. I can’t though as it appears every time I open my settings.

After a few tries, I restarted my phone, the pop still appeared. Then I restarted it again, and it now seem to be gone. I don’t see anything downloaded, no weird apps, or logins from weird places. What should I do and should I worry?