IPTables delete rule by IP and Port

I'm trying to automate the creation and deletion of rules with a bash script.

Currently, I have a rule like this:

iptables -t nat -I PREROUTING -p udp -d {IPDESTINATION} --dport {PORTDESTINATION} -m u32 --u32  '0>>22&0x3C@8=0xFFFFFFFF && 0>>22&0x3C@12=0x54536F75 && 0>>22&0x3C@16=0x72636520 && 0>>22&0x3C@20=0x456E6769 && 0>>22&0x3C@24=0x6E652051 && 0>>22&0x3C@28=0x75657279' -j REDIRECT --to-port {REDIRECTPORT}

I'm needing to be able to delete this rule by specifying the IP Destination and Port Destination. I've attempted something like below:

iptables -D PREROUTING -s {IPDESTINATION} -t nat

Even without supplying a port destination, I'm unable to remove this rule as it responds with the error

iptables: Bad rule (does a matching rule exist in that chain?).

Is this possible with nat rules? {IPDESTINATION} etc are all filled in with valid details.

If you can't delete this rule by doing : iptables -t nat -D PREROUTING 1

A workaround is to create a file who contains all your rules :

1) create a bash file like 'rulesFW.sh'

#!/bin/bash
iptables -F -t nat

2) In your script, each time you add a rule into iptables, append the bash file with the command.

3) If you want to remove a rule, delete the line who match your rule (with the destination IP and other parameters...) in the file

4) Restart the script