If the debt is really unpaid, the account manager of your local bank credit card should bring someone from the local public security bureau to you to urge you to pay the debt, which has nothing to do with the Guangdong Provincial Public Security Bureau.
Under normal circumstances, Guangdong Provincial Public Security Bureau will contact your local public security bureau, and then your local public security bureau will contact your local bank to solve this matter. Foreign public security has no right to handle transnational cases, let alone telephone transnational cases, which is simply impossible.
Recently, there have been many calls from swindlers like this all over the country, and the deceived people send money to swindlers everywhere. You should always be vigilant. You can consult the local public security bureau and the bank.
I have seen your situation several times. I advise you to ignore this liar.