仍摞在那里：still (piled) there 一分也没兑现：not even one cent paid back(强调句式)

Your question is 一分也没总現? It's an emphasize that saying "None of a single cent was returned." Because, some people return money separately. If in this case, u can not say 一分也没总現. If people never return any amount of money they borrowed, then it's the case to use this emphasize: 一分也没总現. But, this sentence is a criticize. Just use to destroy that person's image. Use it carefully.

"The debt that A owes my (B) family, to present, has not been solved?" ——A欠我家（B）的账至今分文未还。

A欠我B家的帐doesn't make any sense! A欠我B的帐至今仍摞在那里一分也没兑現。✔ A欠B的帐至今仍摞在那里一分也没兑現。✔ A欠我的帐至今仍摞在那里一分也没兑現。✔