(1) Our company stopped having staff meetings for a long time. Since two weeks ago, we have meetings again.

I have made up the sentences below.

(1) Our store stopped offering our online customers free shipping service for a long time. Since two weeks ago, we ship for free again.

(2) Our store stopped offering our online customers free shipping service for a long time. Starting two weeks ago, we ship for free again.

My friends are non-native. They are not sure which word is correct: since or starting. Please help me. Thank you very much.