How to replace a Toilet pan connector for a flexi pan connector Giving more movement on the WC

Icare disabled doc m close coupled toilet comfort height pan cistern seat care comfort pan push button cistern a high level (comfort raised height) wc toilet. Thank you for your Attention to this matter. The seller is trade_mart2 and is located in LONDON, Middlesex. All IV postcodes, KW1 to 14, kA27 & 28, KW15 to 17, PA20, PA41 to 49, PA60 to 78, PH42 to 44, PA21 to 38.