Learn Hardcore Arabic (Egyptian): الموظف في البنك قال لي ان الحساب فيه مشكلة. - The employee at the bank told me that there is a problem with the account.

في البنك often sounds like fil-bank
قال is often pronounced 'āl in Egyptian speech
الحساب may sound like el-ḥesāb or, in informal transliteration, el-7esāb
مشكلة is commonly pronounced moshkela

Why is في used twice in the sentence?

They are doing two different jobs.

So the second part is literally something like:

the account — in it — a problem

In natural English, that becomes there is a problem with the account.

What does the -ه in فيه refer to?

It refers back to الحساب.

So:

Because الحساب is masculine singular, the attached pronoun is -ه.

If the noun were feminine, you would often get فيها instead.

What does قال لي mean literally?