eBay API call RelistFixedPriceItem doesn't accept a ListingType of "FixedPriceItem" -

I'm trying to use an eBay API call which makes the item used as a fixed value The auction is listed as.

The "interesting part" of my XML request looks like this:

  & lt; RelistFixedPriceItemRequest & gt; & Lt; Item & gt; & Lt; ListingType & gt; Fixed Patiethum & lt; / ListingType & gt; & Lt; / Item & gt; & Lt; / RelistFixedPriceItemRequest & gt;   
 But still, eBay responds that I can not use the "fixed prism" type of liptype, but instead should use "fixed perisse" (same) :  
  & lt; RelistFixedPriceItemResponse xmlns = "Blur: eBay: APIs: EBLBegCompanies" & gt; Timestamp & gt; 2013-06-21T14: 14: 52.951Z & lt; / Timestamp & gt; & lt; Ack & gt; Failure & lt; / Ack & gt; & lt; Errors & gt; & lt; Short Message & gt; Unsupported Lift Type. & Lt; / Short Message & gt; & lt; Lon Valid listing type FixedPrice Item and StorefixPrice for FixedSpace API. & Lt; / lotmmessage> & lt; error & gt; 21916286 & lt; / error & gt; & lt; SeverityCode & gt; error & lt; ; / SeverityCode>  & Gt; E827_UNI_API5_16161102_R1 & lt; / build & gt; & lt; / RelistFixedPriceItemResponse & gt; Has anyone run this issue - or has found an alternate solution?  
 There is nothing like this in their states that it should not be possible. This is definitely ebay.com, where you can change the listing type on rewriting an item.   
 
 
 Well, if you look at them, you will see that they  
  & lt; Listtepe & gt; Fixed Patiethum & lt; / ListingType & gt;   
 This notifies me that, when you use  RelistFixedPriceItem  calls, you do not need to specify  listing type   Fixed Pace Items   
 I believe this is a misleading error.