Once you have signed up, you pay money into the system by handing cash to an agent (usually a mobile operator's airtime vendor), who credits the money to your mobile-money account.

一旦注册，你将提交现金给一个代理商(常常是移动运营商售卖通话时间的小贩)，他会将现金记在你的手机账户上。

youdao

I'd like to pay some money into my account.

我想在我的账户里存一些钱。

《牛津词典》

Vincent put the five francs into the girl's hands, completely forgetting that he still needed money to pay the rent.

文森特把五法郎塞到女孩手里，完全忘记了他还需要钱来付房租。

youdao

So Su Casita sets up a sort of synthetic mortgage, in which would-be borrowers pay money into a savings account for six months to establish their creditworthiness.

FORBES: Mi Casita Es Su Casita

You, or your employer - or a combination of both - will pay money into a pension and the final value will depend on the investment growth achieved by the money that is being invested.

BBC: purse and cash

From May 1 the widget will no longer require that its users pay money upfront into their accounts, or maintain payments to keep them going a bit like giving you a tip jar, with no requirement that you tip others.

FORBES: Flattr Goes Free To Revolutionize Online Payments