Payments again not reflecting, no reply from RCS

If this the only way RCS can get back to their clients, then I will every month report them for this snotty service? Last month after I reported the useless services received and the *********** or inferior reconciliation system they use a lady with the name of Sa****a from RCS reverted back to me within 10mins. This month is now back to square one. We are phoning RCS on a daily bases to confirm the receipt of payment made to them, but everyday they promise to phone back and advise where the payment went to. We are sending emails upon emails including Sa****a in the email chain but nothing is being done. RCS is charging us for letters and calls but they can't see where the payments is going to? I would understand if it was the 1st time making the payment and they can't pick it up, but this is on a monthly bases. If Sa****a could picked it up last month within minutes to see where the payments went to and rectified our account then why can't the rest of RCS see the payments. This is now becoming an admin nightmare where I have to type this lengthy emails just to get service what is being paid for? I am going to stop payments and will let RCS drag us to court.