In general, if a credit card company wants to sue a debtor in a foreign country, it would need to comply with the laws and regulations of that country. 

This can include filing a lawsuit in a foreign court, which can be a complex and expensive process. 

The credit card company may also need to hire a local attorney to represent them in court and navigate the local legal system.

Another important factor to consider is whether there is a legal agreement in place between the debtor’s country and the country where the credit card company is located. 

For example, the United States has legal agreements with many countries around the world that allow for the enforcement of judgments across borders. 

This means that if a credit card company obtains a judgment against a debtor in the United States 

it may be able to enforce that judgment in another country that has a legal agreement in place.

However, even with legal agreements in place, there are limitations to the ability of credit card companies to pursue debtors in foreign countries.