Urgent ... How much will Unicom's card arrears be blacked out? Is there any connection between blacklist and personal credit now?

If prepaid users don't recharge all the time, our company will automatically take back the number after the deadline; If the post-paid user owes more than 3 months for his mobile phone, our company will recover the number. The fees owed should also be paid off, otherwise it will become a blacklisted user, unable to handle Unicom business, resulting in corresponding late fees. If you don't need to use this number, please cancel your account in the local business hall. Because the policies of different cities are different, the local policies shall prevail.