If a corner unit was genuine suede then it would have cost about 7K. Suede is very rare. Have you checked the backing of the 'fabric' or checked with a microscope as these would give you a definitive answer. Some fabric equivalents are very very good these days and can really feel like the real thing.
You need to determine exactly what it is as cleaning either product the wrong way will potentially ruin it.
Hope this helps
If you want any more info then just give me ring.
Cheers
Judyb