I live in middle england and people say ''I have no time''
But that's already one of the accepted solutions :)
I wrote: "I haven't time..." and my answer has been rejected as well
ponieważ , bo , dlatego że are synonyms ?
Roughly, yes. Note that bo is the least formal of those three.
How can the word "Since" be implied? someone explain maybe?
What is the rule with commas? Is it that there's (nearly) always one before a conjunction?
Mostly... generally, if it introduces another clause, there should be a comma. I myself am not great with those, and sometimes we just need to check on the Internet.
Dlatego could be used as well?
"dlatego, że" could be used. "dlatego" on its own is more like "therefore".
Please, check the sentence, i see "mamczasu" without a space between two words.
All the answers (and there aren't many to check) have "mam czasu" separately.
I remember seeing comments similar to yours, but no one has sent a screenshot. We could really use it to prove that there's some strange bug.