我想問：每日至少來電一次點講呀！

At least one phone call a day.

I guess you are talking about a third party here. So the sentence should be
- He/She/They _____call(s) me/him/her/them____ at least once a day.

Be careful with the other answers because they are grammatically wrong.

Please make me a call everyday

Please ring me at least once a day!

Call me at least once a day.