You might be better off explaining the differences in the two sites data centers and redundancy rather than any of your involvement.
It seems from Susie's perspective that just because Matt is involved with OCS that she can expect the same crappy service, while not realizing that the two companies are using two different and unique data centers for two different purposes.
And paying different fees for keeping the sites up and running.
For those who understand no explanation is needed, ...For those who don't none will.