Confused Tax payer

A confused South African Tax payer . I have been getting emails from Nimble Group say I owe sars money of which I don’t how it possible because sars deducted the money from May till Oct last year and this year I got my IPR5 and the SARS say I owe 1770 rand.The confusing part is that Nimble group is taking money on my Persal without informing me they say I owe 8227 and final penalty now is 9000 rand how come I am so confused why there was no communication that I finished paying safa before they hand over to Nimble Group.This is total not fair to 2025 SARS took money on Payslip and Nimble Group is collecting money again 2026 on my payslip