ABSA Credit Card division not releasing hold for car hire deposit

Good day I herewith would like to lodge a formal complaint regarding a hold on R7206 on my credit card. I have rented a car from BLUU Car Rental from 6-10 February. I enquired from BLUU on 17 February why there was still a hold on the deposit on my credit card. BLUU immediately (on 17 Feb) sent an email to ABSA Authorisations to release the hold, which has not been done. I phoned ABSA Credit Card Division on 19 February requesting the same, and again forwarded the same email from BLUU to ABSA Authorisations. The case number I received is C-***7. I followed up with ABSA on 21 Feb and was eventually told that the amount of R7206 will only be released on 9 MARCH! This is after ABSA client services informed me it should not take longer than 24 hours after they receive the instruction from BLUU. My complaint is about ABSA not acting on the instruction of BLUU and keep MY money on hold for more than 3 weeks. I rent cars often and my deposit is normally released within 7 days from rental. I fail to understand the 3 week delay, which could not be explained to me and find it completely unacceptable.

Furthermore, I followed the so called complaints procedure by emailing them at ‘***’ but not even a response to say they will look into it!

Very frustrating!