Yahoo has not had live phone help for 5 YEARS since Verizon has owned Yahoo for 2 and half YEARS. There are NO Yahoo employees except in Mame only. There is NO live technical help by phone unless you have PAID email account, which is available ONLY in the United States. Yes, you ATE correct. YA has NO chat unless you mean the comments on answers. YA is SUPPOSED to have a STRICT question answer format, but since notifications went active at the end of 2018, that's not accurate.
NO VERIZON employees answer questions an YA. Yahoo laid off ALL the answers teams and customer care agents.
If you mean Yahoo groups, The NEW chat groups have existed since 2013, but those are NOT part of YA. The NEW suggestion board and feedback forums are not help.