One plan claims depleted funds system sucks

Oneplan decline claim although there is funds I am a customer of Oneplan from m 2017. This is the 2nd time around that they do this to me. . When I logged a claim they immediately loaded the R750 on My oneplan card. For routine care. For Prins.. . Not mentioning it that routine care amount was only R143 available.. Why didn't there system" not block me like in the past and warned me that his funds was almost depleted... I went to the vet like a fool, paid the account. Just to be notified by Oneplan that they will only pay R143 of R720 bill.. As his funds is almost depleted. . I will not pay that R577. 00. Balance They should not have paid the R750 into my Oneplan card.... I am also canceling my policy with Oneplan there customer service is pathetic. I logged a complain to them about this... There response was they will cancel my policy... I threatened them... They promised to call me within 48 hours... No response... 8 days later.... They better correct there mistake. I'm a pensioner. Where will I cough R577. 00 to pay them for a system mistake. I will not pay that amount. . Oneplan get your act right and fix your mistake and dont blame the SYSTEM.... Any SYSTEM is operated by humans.....