This question is complicated by the fact that "technical offer" itself ought to have an article or other determiner. The fact that it doesn't gives the impression that the phrase is deliberately written in an abbreviated style that omits articles and potentially certain other "small words", such as would be used for a heading, note or caption. If this is the case, it would be consistent to omit the second article too.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.