Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.
Granting a debtor a delay in paying back the sum, or pardoning him and excluding him from paying back at all, is one of the greatest actions by which one gets nearer to Allah.
The Qur'an incites people to behave in such a manner as Allah Says (interpretation of meaning): {And if the debtor is in a hard time (has no money), then grant him time till it is easy for him to repay, but if you remit it by way of charity, that is better for you if you did but know.}[2:280].
It is confirmed in Saheeh Muslim from Ubada Ibn Samit (Radiya Allahu Anhu) that he heard the Prophet (Sallallahu Alaihi wa Sallam) saying, "Whoever grants a debtor a respite in paying back the sum, or pardons him, Allah will put him under His shade…."
On the above grounds, if you are in a position to give up the debt, or part of it, then try to do so, otherwise give him a respite in paying back the debt until Allah makes it easy for him. You have to know, however, that dealing with an insurance card, if it is issued by banks which deal with usury and interest, may without doubt include dealing with usury and interest, so you have to be careful when dealing with this card, and try to advise your friend regarding this matter, you will be rewarded by Allah.
Allah knows best.