Fix an unchecked error in SendTransactionRequest#6

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jamesallman wants to merge 8 commits intohunterlong:masterfrom jamesallman:master

Commits on May 16, 2019

Sequence change for billTo in case of create customer profile
anuragpal
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Commits on May 21, 2019

Commits on Sep 19, 2019

Commits on Sep 20, 2019