tricity fanfare/model 2176a spare parts lamp cover?

WHERE CAN I GET REPLACEMENT PARTS FOR TRICITY - FANFARE MODEL 2176A. It’s a double oven type.
Whilst my husband trying to clean d inside oven, d lamp glass cover broke into half as he removing it. There’s 2 glass covering inside d light & 1st cover right in between d fan broke. I’m in gratitude for help & let me know where to get spare glass lamp cover. Also a replacement for door handle that coming off as it seems one of d screw holes snapped.
Hope someone be kind enough to direct & give me advice where to get spares please. Thank you.
I could attach some pictures but don’t how to do it.