Small peice white pvc soffit cladding (Sundorne SY1)

I have a small peice of soffit cladding missing following the recent bad weather and I need to replace it asap. I can't seem to find it to buy except in very large quantities. If anyone has a peice like this going spare I'd be really grateful! Measuring 32cmx19cm or anything larger as I can trim down. I can collect from Shrewsbury and surrounding, can travel further depending on time/date, Thank you!