Help receiving Specific CAN ID Message all the time?

[tommy-infotainment]

I have a question. I am trying to figure out getting specific Can IDs and when I get that response it copies to memory. My code works great in newer vehicles but in older vehicles there's too much traffic. When I watch in vehicle spy, when I send a message my Arduino doesn't get my message 10% of the time but I see it there on my CAN Monitor. It's driving me crazy. I'm using the Seeed Library, mcp2515 library. I am trying to send a command and receive the response. I get the response like 90% of the time but not all the time and that makes no sense. I've tried Mask and Filters and tried putting the read in a loop and that messes up, and made a function to find a certain byte at a certain location but that grabs any ID that has that byte in the location. I need to send 0x720 and get that response 0x728 all the time. So how am I not getting the response. Can anyone think how to help?