Product: Credit card or prepaid card

Apple has recently started holding my payments for an unreasonable amount of time after they have been debited from my bank before crediting my account. For example, between yesterday and today I made two payments, one on XXXX {$4900.00} and one on XXXX for {$4800.00}. I was informed in a chat today with Apple Card customer service that it will take 11 days before these payments post and add available credit to my account. 
This is an unreasonable amount of time for Apple to hold my funds and not credit my account and is problematic for the following reasons. 
1. ) I feel Apple is doing this in order to limit the amount I can use my card and receive cash back 2. ) Apple has been given no reason to delay credit of my payments. I have been a excellent client and made all payments on time and therefore interest free.

3. ) By refusing to credit my account in a timely manner they tie up both my funds and my ability to use the card. Therefore the funds are either tied up on a credit card that has no ability to earn me any rewards or cash back or if I pay the full amount and to have free use of my funds I am forced to pay the interest rate on their card.

4. ) This behavior by Apple might be understandable if I was not an excellent client with an excellent record of payment. In XXXX alone, I used the Apple Card to make over {$390000.00} in purchases. I have a XXXX credit limit, so on the average I not only paid my entire XXXX Apple Card balance each month, but I also paid an additional XXXX over the XXXX balance. Dates and information leading up to these issues. 
Historically, I have had no issue with Apple or with receiving immediate credit to my account after making a payment. 
However, on XX/XX/XXXX I made a payment for {$10000.00} at XXXX from XXXXXXXX XXXX to the Apple Card that was declined because of a issue with my account on Landmark Banks end. Upon seeing that the payment was rejected at I immediately on the same day ( XX/XX/XXXX at XXXX ) made another payment for {$4900.00} from my XXXX XXXX account. This payment was accepted. 
This payment was not late by any means. 
Not only had I been on time, I made the following multiple accepted payments to my Apple Card in XXXX XX/XX/XXXX for {$2900.00}, XX/XX/XXXX for {$990.00}, and XX/XX/XXXX for {$990.00}. 
Since this happened I have had to wait an unreasonable amount of time for my account to be credited after making my payment. When asked the explanation I received on XXXX for a payment made on XX/XX/XXXX and shown to be debited from my account on XX/XX/XXXX was the following response. 
From Apple : It looks like we have received a reversal on a payment you've made in the past. Due to this it may take longer for payments to reflect in your available credit. The payment of {$4900.00} will release on XX/XX/XXXX and the payments of {$2400.00} and {$15000.00} will release on XXXX hold is on our end not the banks end. Anytime there is a canceled, rejected or reversed payment, it can place a hold on the next payments made in sequence to that one. 
I was hopeful when I made the payments today that the hold would be released, however that was not the case and today when I made an inquiry this is the message I received. 
From Apple This payment has been applied to your account but is currently on hold. Your available credit for the payment in the amount of {$4800.00} made on XXXX will reflect on XXXX. In the meantime, you can review your account balance and make additional payments by tapping the link below. XXXX Im obviously going to stop using my Apple Card and thankfully have the means to pivot my expenses to other cards, but Apple Card should not be able target their customers who dont allow Apple to make money because they utilize their Apple card, pay it off and have a great payment history.