[King Yao]

Is it a circled game with lower limits? If so, there is good reason they don't want you to parlay it - because their software probably does not limit the parlay on specific teams. For example, if the limit on circled games is $1,000 and you could parlay it, you could parlay it to a bunch of other games at $1,000 per parlay and circumvent the limits.

On the other hand, if it is not a circled game, then I have no good answer.