I like having pretty acrylic nails:
Roughly once a month, I need to get a refill. (Basically, they take the color off, and fill in the part of the nail where it's grown out, and paint them again.)
In my last visit to China, I attempted to get a refill, except (a) my Chinese didn't seem up to the task (I typically listen to intermediate level on ChinesePod, but this is a specialized topic), and (b) the lady didn't seem to have the appropriate equipment. I managed to get my nails done, but it wasn't the same as what I've had previously in Western countries (instead, they just painted over them).
Question: How can I ask for a nail refill?
I've just learned the words 假指甲 (fake nails) and 美甲 (manicure). But I suspect a translation of "refill" will not give me what I'm after.