بقالي ساعتين بستنى الرسالة على التليفون.

بقالي is a very common Egyptian Arabic way to express I have been ... for ... with time.

So:

• بقالي ساعتين = I’ve been ... for two hours
• literally, it is something like it has remained for me two hours, but you should learn it as a fixed expression

In Egyptian Arabic, you often do not need a separate word exactly matching English for in this structure. The idea of for + amount of time is already built into بقالي.

A few similar examples:

• بقالي يومين هنا = I’ve been here for two days
• بقالي أسبوع مستنيه = I’ve been waiting for him for a week

ساعتين means two hours.

The singular is:

• ساعة = hour

In Egyptian Arabic, the dual often uses -ين, so:

• ساعتين = two hours

This is the normal colloquial form. In Standard Arabic, you may learn forms like ساعتان / ساعتين, but in Egyptian everyday speech, ساعتين is the usual choice.